Novel ore pulp concentration meter based on ELM network and measurement method

A measurement method and a concentration meter technology, applied in the field of measurement, can solve problems such as the inability to realize automatic control of pulp concentration, hidden dangers of radioactive source environment and safety, and influence on the accuracy of measurement results, so as to reduce system complexity, long maintenance period, Measuring Rapid Effects

Inactive Publication Date: 2018-12-14
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: radioactive sources present environmental and safety hazards
Disadvantages: Ultrasonic waves will be affected by air bubbles, too many air bubbles will affect the accuracy of measurement results
Disadvantages: small measurement range, affected by chromaticity
Disadvantages: inaccurate at low concentrations
[0008] Concentration pot, offline detection of pulp concentration, low efficiency, more repetitive work, and automatic control of pulp concentration cannot be realized

Method used

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  • Novel ore pulp concentration meter based on ELM network and measurement method
  • Novel ore pulp concentration meter based on ELM network and measurement method
  • Novel ore pulp concentration meter based on ELM network and measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like figure 1 and figure 2 As shown, the measuring tube 5 is fixed on the measuring end of the electronic scale 3 , and the two ends of the measuring tube 5 are respectively connected to the guide pipe 1 and the drain pipe through the hose 2 . The water inlet of the diversion pipe 1 is low, the slurry flows from the left to the right in the figure, and the water inlet of the diversion pipe 1 faces the slurry flow. The drain outlet of the drain pipe is higher than the horizontal position of the water inlet, and can be located close to the liquid level of the slurry flow, and the direction of the drain outlet is perpendicular to or away from the flow direction of the slurry. A slurry pump can be provided at the diversion pipe 1, which can speed up the flow rate of the ore slurry in the entire drainage pipeline. When the slurry concentration changes, the slurry in the entire measuring tube 5 can be renewed more quickly.

[0041] The drain also includes a section of inv...

Embodiment 2

[0048] The diversion pipe 1 and the drainage pipe of the drainage pipeline in this embodiment respectively lead into the slurry flow from the side wall of the slurry tank. The entire drainage pipeline is below the liquid level of the slurry. Seal the connection. This embodiment is a fixed concentration meter.

[0049] The body of the electronic scale 3 is fixed, and the measuring tube 5 and the measuring end of the electronic scale 3 can move up and down. The measurement zero point can be preset when there is no liquid in the measuring tube 5, the weight signal obtained by the electronic weighing device 3 is the pulp weight, and the pulp weight signal, namely the analog signal M, is transmitted to the signal processing terminal. The length of the measuring tube 5 is 1m, and the diameter of the inner hole is 0.0333m. The pulp concentration ρ is calculated by ρ=M / V.

Embodiment 3

[0051] Weigh the weight of the liquid in the measuring tube (5) to obtain the analog signal M;

[0052] Convert the analog signal M into a digital signal M';

[0053] Divide the obtained continuous 5 digital signals M' into a group, remove a maximum value and a minimum value in each group, and calculate the arithmetic mean of the remaining 3 digital signals M', that is, a filtered signal M" is obtained;

[0054] The ore concentration ρ is obtained by ELM neural network calculation on the continuous filtered digital signal M″ arranged along the time.

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Abstract

The invention relates to a novel ore pulp concentration meter based on an ELM network. The novel ore pulp concentration meter comprises a drainage pipeline, an electronic weighing device and a signalprocessing end, wherein the drainage pipeline comprises a flow guide pipe, hoses, a measuring pipe and a drain pipe; the front end of the measuring pipe is connected with the flow guide pipe through one hose, and the rear end of the measuring pipe is connected with the drain pipe through the other hose; the measuring pipe is fixedly connected with a measuring end of the electronic weighing device,and the electronic weighing device is used for measuring weight of ore pulp in the measuring pipe; the electronic weighing device transmits a weight signal to the signal processing end, and the signal processing end calculates ore pulp concentration in real time. According to the provided novel ore pulp concentration meter based on the ELM network, the measuring pipe is directly suspended at themeasuring end of the electronic weighing device, weight change of the measuring pipe is directly caused by concentration change of the ore pulp, and the weight signal is transmitted to the signal processing end synchronously, so that measurement is rapid and response is sensitive. The novel ore pulp concentration meter is concise in structure, simple to mount and operate, lower in cost and long inmaintenance period.

Description

technical field [0001] The invention relates to the field of measuring instruments, in particular to a novel ore pulp concentration meter based on an ELM network. [0002] The invention also relates to a measurement method. Background technique [0003] Since the pulp concentration is an important judgment basis and reference index in the beneficiation process, in the grinding, flotation, dewatering and other operations of the beneficiation process, timely and accurate measurement of the pulp concentration is very important for a series of manual operations such as grinding and flotation. meaning. The industrial site needs to measure the pulp concentration frequently, so as to supervise the production and keep the pulp concentration within the specified range throughout the beneficiation process, which is convenient for the production workers to operate and make the production run smoothly. [0004] Existing densitometers include: radiation densitometers. When a certain in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/00
CPCG01N5/00
Inventor 肖东王婧雯王宁刘有为史家顺刘新新袁平
Owner NORTHEASTERN UNIV LIAONING
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